One way to show your love for the environment and your love of saving gas money is by purchasing a hybrid or an all-electric vehicle. Another way would be to go with something that runs on 100% biodiesel fuel. Easier said than done. If you have the cash, the Trident Iceni Magna Fastback is the sexiest way to give Mother Nature a hug. The sports car runs on 100% biodiesel so it cuts back on emissions all while allowing you to go 0-60 in 3.7 seconds. The new fastback model is similar to the convertible that debuted back in 2012 and is currently available for order though a shipment date is not yet known.